LearnBoost/socket.io-client — pull request #448 by volrath (2012-07-04 03:51:01+00:00)
Title: `disconnectSync` doesn't send the xhr to the server.

Hey, I've been working with this implementation and [gevent-socketio](https://github.com/abourget/gevent-socketio) and I had troubles disconnecting when the client unloaded. I realized that `disconnectSync` wasn't sending the xhr to the server, and also that the uri was malformed with an undefined.

Anyway, this commit fixes that.

Also I was thinking it might be useful to add some parameter to the uri to tel the server that we're disconnecting, something like `///?action=disconnect
I don't know if that would be useful, what you guys think?